00458+5459 ES   43BC

Coord 2000	00458+5459		Discov num	ES   43		Comp	BC		Coord arcsec 2000	00 45 51.23 +54 58 40.8
Date first	1901		Date last	2015		Obs	13
Pa first	73		Pa last	64		P.A. Now (θ)	64°
Sep first	14.2		Sep last	15.9		Sep. Now (ρ)	15.9"
Mag pri	9.81		Mag sec	12.70		delta mag (ΔM)	2.89		Spectral class	F8V (yellow-white)
Pri motion ra	+002		Sec motion ra	-025
Pri motion dec	-004		Sec motion dec	+003
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=1.108 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		21682	00458+5459	ARG 2	AB	1901	2013	31	46	2.3	7.87	9.81	1.94
Show		21682	00458+5459	ARG 2	AC	1907	2018	20	64	15.6	7.87	12.70	4.83
Show		21682	00458+5459	WAL 9	AD	1917	2015	19	93	41.5	7.87	11.48	3.61
Show		21682	00458+5459	ES 43	BC	1901	2015	13	64	15.9	9.81	12.70	2.89		<===

Quadruple system
4 visible stars in this system

Precise pa	64.4		Precise sep	15.932		Constellation	Cassiopeia		SAO	21682
HIP	3589		Tycho2	3659-01376-1		Gaia DR2	7132217472		HD	4277
BD	BD+54 144		Distance	52.52		Distance ly	171.32

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00458+5459	ES 43	BC	2006	9	69	13.7	9.00	12.80		D	004550.88+545840.3
00458+5459	ES 43	BC	2010	10	69	13.8	9.81	13.60		N D	004550.88+545840.3
00458+5459	ES 43	BC	2013	12	67	16.2	9.81	12.70		N	004550.88+545840.3
00458+5459	ES 43	BC	2015	13	64	15.9	9.81	12.70	F8V	N W	004551.23+545840.8

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